cornelison



UNITED STATES PATENT OFFICE.

JOHN H. OORNELISON, OF ST. LOUIS, MISSOURI, ASSIGN OR TO rlI-IE AMERICANROLL PAPER COMPANY, OF SAME PLACE.

l ROLL-PAPER HOLDER AND CUTTER.

SPECIFICATION forming part of Letters Patent No. 452,690, dated May 19,1891.

Application filed June 7, 1890.

To all whom, t may concern,.-

Be it known that I, JOHN I-I. CORNELISON, of the city of St. Louis, inthe State of Missouri, have invented a certain new and usefulImprovement in Roll-Paper Holders and Cutters, of which the following isa full, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification.

My invention relates to certain improvements in machines for holding andcutting wrapping-paper; and myinvention consists in features ofnoveltyhereinafter fully described, and pointed out in the claims.

Figure I is an elevation of my improved machine. Fig. II is a side View,and Fig. III is a side view illustrating a modification.

Referring to the drawings, l represents a suitable base,to whichstandards 2 aresecured. On the upper end of each standard (there is astandard at each end of the machine) is a cross-head 3 4. To the ends 3of the crossheads levers 5 are pivoted at 6.

7 represents links pivoted at 8 to the upper ends of thelevers 5 andform therewith toggle levers. These links 7 are provided with slottedends 9, fitting the journals 10 of the spindle Aupon which the roll 1lof paper is wound. The journals l() rest on the cross-heads 3 4, asshown in Fig. II. The outer ends 4 of the cross-heads are preferablycurved upwardly, as shown at 4"', Fig. II, and on the extremities of theends 4 of the cross-heads are projections or heads 4b, which prevent thejournals 10 being moved off the cross-heads as the roll of paper becomesexhausted.

l12 represents a knife secured to the upper ends of the levers 5 andwhich has a cuttingedge 121. The knife is preferably curved tosubstantially conform to the contour of the roll, as shown in Fig. II.As the size of the roll decreases, it is forced along the crossheadsfrom the position shown in full lines, Fig. II, to the position shown indotted lines, the space between the levers 5 and the links 7 widening oropening out and the knife falling so as always to remain in contact withthe surface of the roll. It will be seen that as the roll decreases insize and therefore becomes lighter its retrograde movement is preventedby the togglelevers, which are Serial No. 354,581. (No model.)

constantly approaching a horizontal position with a gradual increase ofpressire on the journals of the rolls, and the result of this is that agradually-increasing pressure is maintained between the knife and roll,the decrease or deficiency in the weight of the roll, which wouldordinarily prevent obtaining sufflcient pressure to sever thepaper,being counteracted by the increased pressure of the toggle-levers.

To partly equalize or moderate the constantly-increasin g pressurebetween the knife and roll when theroll is almost exhausted, I providethe inclines 4 of the ends 4 of the arms upon which the journals 10 ofthe spindle of the roll move, so that no trouble will be eX- periencedin severing even the last portion of paper.

In the form of my invention shown in Fig. III the knife 12 is secured tothe outer ends of bell-crank levers 16, which are pivoted at 17 tostandards 2. The standards have ini clined extensions 13, against whichbear a roller 14, journaled in the upper ends of links 15, which areconnected attheir lower ends to the inner ends of the bell-crank levers16. In this form of my invention the parts move from the position shownin full lines, Fig. III, toward the position shown in dotted lines asthe size of the roll decreases, and as the size of the roll diminishesthe weight 14 has a more direct bearing upon the inner ends of thebell-crank-levers 16, and thus compensates for the decreased size of theroll by holding the knife with greater pressure against the roll when itis small than when it is large.

I claim as my invention-M 1. In a roll-paper holder and cutter, the

combination of a suitable support for the roll` of paper, levers pivotedto the supports, a knife carried by the pivoted levers, andlinks pivotedto the levers and which act on the roll IOO ing on the eross-heads, andlinks pivoted to the levers and resting on the journals of the roll ofpaper, substantially as and for the purpose set forth.

3. In a roll-paper holder and cutter, the combination of suitablesupports, cross-heads on the upper ends of the supports, levers pivotedto one end of the cross-heads, a knife secured to the levers, a roll ofpaper resting on the cross-heads, and links pivoted to the levers andresting on the journals of the roll of paper, said knife being forlnedto fit the contour of the roll and havinga eutting-edge removed from thepivot-point of the knife, substantially as and for the purpose setforth.

4. In a roll-paper holder and cutter, the combination of the supports,cross-heads on the upperrends of the supports and having ends 4,providedwith inelines clevers hinged to the ends 3 of the cross-heads, a knifesecured to the upper ends of the levers, and links pivoted to the upperends of the levers and resting on the journals of the roll of paper,substantially as and for the purpose set forth.

5. In a roll-paper holder and cutter, the combination of suitablestanda1'ds,erossl1eads 3 l, seeured to the upper ends of the standards,the ends 4, having inelines 4 and projeetions 4b, levers pivoted to theends 3 of the orossheads, a knife secured to the levers, and linkspivoted to the upper ends of the levers and slotted at their lower endsto fit the journals of the roll of paper, substantially as and for thepurpose set forth.

(j. In a rollpaper holder and cutter, the combination of suitablestandards supporting a roll of paper, toggle-levers pivoted to theroll-supporting frame, and a knife secured to the toggle-levers,substantially as herein set forth.

7. In a roll-paper holder and cutter, the combination of suitablestandards provided with horizontal ways for the roll-supporting spindleto travel on, and a knife, with suitable toggle-levers carrying saidknife and actuating the roll of paper in its horizontal Ways,substantially as herein set forth.

JOHN ll. CORNELISON.

In presence of- THos. KNIGHT, E. S. KNIGHT.

